Values between keyframes change in a weird way.

ppaawweell336

Hello, I have a problem with keyframes on the timeline.

Let's say I have a total of 100 frames. The keyframes on the bones are set every 10 frames, so the keyframes are at 0, 10, 20, 30, and so on.

The animation looks smooth, except for the left arm, lef forearm, left collar. The values change in a strange way. Let's say that between frames 20 and 30, the values do not decrease gradually from -15 to -30 but are all over the place.
Key 21 is -15.20, Key 22 is -14.30, Key 23 is -17.50, Key 24 is -10.20. You see the problem.

The rest of the body is fine. Why is this happening? What could be causing it? The character is Genesis 8.1 Female

I would like to point out that I am transferring animation from Rokoko motion capture using the Mocap Live plugin. However, I don't think this is the cause of the problem, as all other characters work flawlessly and the problem only affects this particular character.

WendyLuvsCatz

by default DAZ studio does not use linear tweening, it drives me nuts too

you need to manually change it for every tweener

it also does not keyframe everything along the timeline but importing a BVH it likely does but the rotation method, dual quaternion, might be different to the one the BVH uses, likely angles

ppaawweell336

I know, I always switch to linear. 

I also do not upload BVH, but stream directly from Rokoko using Mocap Live plugin from Daz store. It works perfectly with every other character, the issue is only with this one character arm. There's always a problem with that arm no matter what animation I do. The other bones are totally fine.

I'm not sure how this is possible, since the values should transition smoothly between keyframes, rather than jumping like that.

WendyLuvsCatz

yeah, I don't have the plugin or a Rokoko suit 

I was just going by the issues I have with BVH

Richard Haseltine

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/change_log_4_22_0_19#4_21_1_102

Extended DzScene public API; added setDefaultKeyInterpolationType(), getDefaultKeyInterpolationType(); added defaultKeyInterpolationTypeChanged() signal

https://www.daz3d.com/forums/discussion/comment/8934041/#Comment_8934041 has a script, demonstrated here https://www.daz3d.com/forums/discussion/comment/8950546/#Comment_8950546